Generators and ExtractorsTemporary EmailText Tools

Online Validators

Check common formats and structures before using data in tests, internal forms or technical review.

18tools in this category

Online Validators

18 tools in this category

CPF Validator

Check CPF digits and format

CNPJ Validator

Check CNPJ digits and format

Email Validator

Check email address format

JSON Validator

Find JSON syntax errors

Alphanumeric CNPJ Validator

Check alphanumeric CNPJ

UUID Validator

Check whether a UUID is valid

URL Validator

Check protocol, domain and path

XML Validator

Find XML syntax errors

CSV Validator

Check CSV columns and rows

Luhn Validator

Validate numbers with Luhn check

YAML Validator

Find YAML syntax errors

Password Strength Checker

Measure password strength

Color Contrast Checker

Check contrast for readability

IP Address Validator

Check IPv4 and IPv6 addresses

MAC Address Validator

Check MAC address format

HEX Color Validator

Check HEX color codes

Domain Validator

Check domain name format

Robots.txt Validator

Check robots.txt rules

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Each tool has its own page and shows the result directly on the screen.

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Useful tools for search, answers and everyday work.

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